Overview
The LT3080EMS8E#PBF is a 1.1A low dropout linear regulator produced by Analog Devices Inc. This device is part of the LT3080 series and is known for its high performance and ease of use. It features an adjustable output voltage set by a single external resistor, making it versatile for various applications. The regulator includes several protection features such as short-circuit protection, safe operating area protection, and thermal shutdown, ensuring reliable operation under different conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Output Current | - | - | 1.1 | A |
| Input Voltage (IN Pin) | -0.3 | - | 40 | V |
| Control Pin Voltage (VCONTROL) | -0.3 | - | 40 | V |
| SET Pin Current | 9.80 | 10 | 10.20 | µA |
| SET Pin Voltage (Relative to OUT) | -0.3 | - | 0.3 | V |
| Output Short-Circuit Duration | - | - | Indefinite | - |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | 8-Lead Plastic MSOP | - |
Key Features
- Adjustable Output Voltage: Set by a single external resistor, allowing for a wide range of output voltages from zero to the maximum rated output voltage.
- Low Dropout Voltage: Ensures minimal voltage drop between the input and output, making it efficient for low-voltage applications.
- High Current Capability: Can deliver up to 1.1A of output current and can be paralleled to increase current or spread heat in surface-mounted boards.
- Protection Features: Includes short-circuit protection, safe operating area protection, and thermal shutdown to ensure reliable operation.
- Low Noise and Ripple Rejection: Provides high ripple rejection and low noise, making it suitable for sensitive electronic circuits.
- Compact Package: Available in an 8-lead Plastic MSOP package, which is compact and suitable for space-constrained designs.
Applications
The LT3080EMS8E#PBF is well-suited for a variety of applications, including:
- Multiple Rail Power Supplies: Ideal for systems requiring multiple voltage rails, as it allows easy parallel operation and thermal management without heat sinks.
- Low Voltage Digital ICs: Supports modern low-voltage digital ICs with its ability to adjust down to zero output voltage.
- Industrial and Automotive Systems: Can be used in industrial and automotive applications due to its robust protection features and wide operating temperature range.
- General Power Management: Suitable for any application requiring a high-performance, adjustable linear regulator with minimal external components.
Q & A
- What is the maximum output current of the LT3080EMS8E#PBF?
The maximum output current is 1.1A.
- How is the output voltage of the LT3080EMS8E#PBF set?
The output voltage is set by a single external resistor connected to the SET pin.
- What are the key protection features of the LT3080EMS8E#PBF?
The device includes short-circuit protection, safe operating area protection, and thermal shutdown.
- What is the operating temperature range of the LT3080EMS8E#PBF?
The operating temperature range is from -40°C to 125°C.
- Can the LT3080EMS8E#PBF be paralleled to increase output current?
- What type of package is the LT3080EMS8E#PBF available in?
The device is available in an 8-lead Plastic MSOP package.
- What is the minimum load current required for the LT3080EMS8E#PBF to regulate properly?
The minimum load current required is 1mA.
- How can the transient performance of the LT3080EMS8E#PBF be improved?
Transient performance can be improved by adding a small capacitor from the SET pin to ground.
- Is the LT3080EMS8E#PBF suitable for automotive applications?
Yes, but specific automotive-grade models must be used. Contact Analog Devices for specific product ordering information.
- What is the dropout voltage of the LT3080EMS8E#PBF?
The dropout voltage is typically around 150-300 mV depending on the load current and input voltage.
